Finding the Fourth Proportional to 354,061.02, 488,598.03 and 192,917.40

Step by Step Solution

1. Step 1: Write the proportion equation
   354,061.02 : 488,598.03 = 192,917.40 : x
2. Step 2: Convert to fraction form
   354,061.02/488,598.03 = 192,917.40/x
3. Step 3: Cross multiply
   354,061.02x = 488,598.03 × 192,917.40
4. Step 4: Simplify right side
   354,061.02x = 94,259,061,592.72
5. Step 5: Solve for x
   x = 94,259,061,592.72/354,061.02
6. Step 6: Final answer
   x = 266,222.65